mrt 082013
 
The Age of Oldest Known Star Determined

  A team of astronomers using NASA’s Hubble Space Telescope has taken an important step closer to finding the birth certificate of a star that’s been around for a very long time. This is an illustration of the oldest star ever found in our solar neighborhood. The aging star, cataloged as HD 140283, lies 190.1 [continue reading]

dec 122012
 
Vega Older Than Thought! What Does That Mean for Other Stars?

  Vega, a star astronomers have used as a touchstone to measure other stars’ brightness for thousands of years, may be more than 200 million years older than previously thought. That’s according to new findings from the University of Michigan. Vega, the brightest star in the constellation Lyra. Image Credit: John Monnier (University of Michigan) The [continue reading]

jun 232012
 
Forgotten Starcluster Useful in Hunt for Earth-Like Planets

  A loose group of stars, known for over 180 years but never before studied in detail, has been revealed to be an important new tool in the quest to understand the evolution of stars like the Sun, and in the search for planets like Earth.    Penn State University astronomers have determined that 80 [continue reading]